diff --git a/src/model/transaction/CosignatureTransaction.ts b/src/model/transaction/CosignatureTransaction.ts
index 3c1dcbf31a..a89c77a956 100644
--- a/src/model/transaction/CosignatureTransaction.ts
+++ b/src/model/transaction/CosignatureTransaction.ts
@@ -26,7 +26,7 @@ import { Transaction } from './Transaction';
  */
 export class CosignatureTransaction {
     /**
-     * @param transactionToCosign
+     * @param transactionToCosign Aggregate transaction
      */
     constructor(
         /**
@@ -66,13 +66,14 @@ export class CosignatureTransaction {
     /**
      * Serialize and sign transaction creating a new SignedTransaction
      * @param account
+     * @param transactionHash Transaction hash (optional)
      * @returns {CosignatureSignedTransaction}
      */
-    public signWith(account: Account): CosignatureSignedTransaction {
-        if (!this.transactionToCosign.transactionInfo!.hash) {
+    public signWith(account: Account, transactionHash?: string): CosignatureSignedTransaction {
+        if ((!this.transactionToCosign.transactionInfo || !this.transactionToCosign.transactionInfo!.hash) && !transactionHash) {
             throw new Error('Transaction to cosign should be announced first');
         }
-        const hash = this.transactionToCosign.transactionInfo!.hash;
+        const hash = !transactionHash ? this.transactionToCosign.transactionInfo!.hash : transactionHash;
         const hashBytes = Convert.hexToUint8(hash ? hash : '');
         const keyPairEncoded = KeyPair.createKeyPairFromPrivateKeyString(account.privateKey);
         const signature = KeyPair.sign(keyPairEncoded, new Uint8Array(hashBytes));
diff --git a/test/model/transaction/CosignatureTransaction.spec.ts b/test/model/transaction/CosignatureTransaction.spec.ts
index 187a996456..116dd6be93 100644
--- a/test/model/transaction/CosignatureTransaction.spec.ts
+++ b/test/model/transaction/CosignatureTransaction.spec.ts
@@ -32,63 +32,63 @@ describe('CosignatureTransaction', () => {
         account = TestingAccount;
     });
 
-    it('should createComplete an TransferTransaction object and sign it', () => {
-        const aggregateTransferTransactionDTO = {
-            meta: {
-                hash: '671653C94E2254F2A23EFEDB15D67C38332AED1FBD24B063C0A8E675582B6A96',
-                height: '18160',
-                id: '5A0069D83F17CF0001777E55',
-                index: 0,
-                merkleComponentHash: '81E5E7AE49998802DABC816EC10158D3A7879702FF29084C2C992CD1289877A7',
-            },
-            transaction: {
-                cosignatures: [
-                    {
-                        version: '0',
-                        signature:
-                            '5780C8DF9D46BA2BCF029DCC5D3BF55FE1CB5BE7ABCF30387C4637DD' +
-                            'EDFC2152703CA0AD95F21BB9B942F3CC52FCFC2064C7B84CF60D1A9E69195F1943156C07',
-                        signerPublicKey: 'A5F82EC8EBB341427B6785C8111906CD0DF18838FB11B51CE0E18B5E79DFF630',
+    const aggregateTransferTransactionDTO = {
+        meta: {
+            hash: '671653C94E2254F2A23EFEDB15D67C38332AED1FBD24B063C0A8E675582B6A96',
+            height: '18160',
+            id: '5A0069D83F17CF0001777E55',
+            index: 0,
+            merkleComponentHash: '81E5E7AE49998802DABC816EC10158D3A7879702FF29084C2C992CD1289877A7',
+        },
+        transaction: {
+            cosignatures: [
+                {
+                    version: '0',
+                    signature:
+                        '5780C8DF9D46BA2BCF029DCC5D3BF55FE1CB5BE7ABCF30387C4637DD' +
+                        'EDFC2152703CA0AD95F21BB9B942F3CC52FCFC2064C7B84CF60D1A9E69195F1943156C07',
+                    signerPublicKey: 'A5F82EC8EBB341427B6785C8111906CD0DF18838FB11B51CE0E18B5E79DFF630',
+                },
+            ],
+            deadline: '1000',
+            maxFee: '0',
+            signature:
+                '939673209A13FF82397578D22CC96EB8516A6760C894D9B7535E3A1E0680' +
+                '07B9255CFA9A914C97142A7AE18533E381C846B69D2AE0D60D1DC8A55AD120E2B606',
+            signerPublicKey: '7681ED5023141D9CDCF184E5A7B60B7D466739918ED5DA30F7E71EA7B86EFF2D',
+            transactions: [
+                {
+                    meta: {
+                        aggregateHash: '3D28C804EDD07D5A728E5C5FFEC01AB07AFA5766AE6997B38526D36015A4D006',
+                        aggregateId: '5A0069D83F17CF0001777E55',
+                        height: '18160',
+                        id: '5A0069D83F17CF0001777E56',
+                        index: 0,
                     },
-                ],
-                deadline: '1000',
-                maxFee: '0',
-                signature:
-                    '939673209A13FF82397578D22CC96EB8516A6760C894D9B7535E3A1E0680' +
-                    '07B9255CFA9A914C97142A7AE18533E381C846B69D2AE0D60D1DC8A55AD120E2B606',
-                signerPublicKey: '7681ED5023141D9CDCF184E5A7B60B7D466739918ED5DA30F7E71EA7B86EFF2D',
-                transactions: [
-                    {
-                        meta: {
-                            aggregateHash: '3D28C804EDD07D5A728E5C5FFEC01AB07AFA5766AE6997B38526D36015A4D006',
-                            aggregateId: '5A0069D83F17CF0001777E55',
-                            height: '18160',
-                            id: '5A0069D83F17CF0001777E56',
-                            index: 0,
+                    transaction: {
+                        message: {
+                            payload: '746573742D6D657373616765',
+                            type: 0,
                         },
-                        transaction: {
-                            message: {
-                                payload: '746573742D6D657373616765',
-                                type: 0,
+                        mosaics: [
+                            {
+                                amount: '100',
+                                id: '85BBEA6CC462B244',
                             },
-                            mosaics: [
-                                {
-                                    amount: '100',
-                                    id: '85BBEA6CC462B244',
-                                },
-                            ],
-                            recipientAddress: '6823BB7C3C089D996585466380EDBDC19D4959184893E38C',
-                            signerPublicKey: 'B4F12E7C9F6946091E2CB8B6D3A12B50D17CCBBF646386EA27CE2946A7423DCF',
-                            type: 16724,
-                            version: 36865,
-                        },
+                        ],
+                        recipientAddress: '6823BB7C3C089D996585466380EDBDC19D4959184893E38C',
+                        signerPublicKey: 'B4F12E7C9F6946091E2CB8B6D3A12B50D17CCBBF646386EA27CE2946A7423DCF',
+                        type: 16724,
+                        version: 36865,
                     },
-                ],
-                type: 16705,
-                version: 36865,
-            },
-        };
+                },
+            ],
+            type: 16705,
+            version: 36865,
+        },
+    };
 
+    it('should createComplete an TransferTransaction object and sign it', () => {
         const aggregateTransferTransaction = CreateTransactionFromDTO(aggregateTransferTransactionDTO);
 
         const cosignatureTransaction = CosignatureTransaction.create(aggregateTransferTransaction as AggregateTransaction);
@@ -119,4 +119,69 @@ describe('CosignatureTransaction', () => {
         expect(signedTx.signerPublicKey).to.be.equal(account.publicKey);
         expect(signedTx.version.toString()).to.be.equal('0');
     });
+
+    it('should sign a transaction with provided transactionHash', () => {
+        const tx = TransferTransaction.create(
+            Deadline.create(),
+            account.address,
+            [],
+            PlainMessage.create('a to b'),
+            NetworkType.MIJIN_TEST,
+        );
+
+        const aggregate = AggregateTransaction.createComplete(
+            Deadline.create(),
+            [tx.toAggregate(account.publicAccount)],
+            NetworkType.MIJIN_TEST,
+            [],
+        );
+        const txHash = '9801508C58666C746F471538E43002B85B1CD542F9874B2861183919BA8787B6';
+
+        const cosignTx = new CosignatureTransaction(aggregate);
+
+        const signedTx = cosignTx.signWith(account, txHash);
+
+        expect(signedTx.parentHash).to.be.equal('9801508C58666C746F471538E43002B85B1CD542F9874B2861183919BA8787B6');
+        expect(signedTx.signerPublicKey).to.be.equal('9801508C58666C746F471538E43002B85B1CD542F9874B2861183919BA8787B6');
+        expect(signedTx.signerPublicKey).to.be.equal(account.publicKey);
+        expect(signedTx.version.toString()).to.be.equal('0');
+    });
+
+    it('should sign a transaction to throw', () => {
+        const tx = TransferTransaction.create(
+            Deadline.create(),
+            account.address,
+            [],
+            PlainMessage.create('a to b'),
+            NetworkType.MIJIN_TEST,
+        );
+
+        const aggregate = AggregateTransaction.createComplete(
+            Deadline.create(),
+            [tx.toAggregate(account.publicAccount)],
+            NetworkType.MIJIN_TEST,
+            [],
+        );
+        const cosignTx = new CosignatureTransaction(aggregate);
+        expect(() => {
+            cosignTx.signWith(account);
+        }).to.throw(Error, 'Transaction to cosign should be announced first');
+    });
+
+    it('should sign a transaction to throw no hash in transaction info', () => {
+        Object.assign(aggregateTransferTransactionDTO, {
+            meta: {
+                hash: undefined,
+                height: '18160',
+                id: '5A0069D83F17CF0001777E55',
+                index: 0,
+                merkleComponentHash: '81E5E7AE49998802DABC816EC10158D3A7879702FF29084C2C992CD1289877A7',
+            },
+        });
+        const aggregate = CreateTransactionFromDTO(aggregateTransferTransactionDTO) as AggregateTransaction;
+        const cosignTx = new CosignatureTransaction(aggregate);
+        expect(() => {
+            cosignTx.signWith(account);
+        }).to.throw(Error, 'Transaction to cosign should be announced first');
+    });
 });